38 GHz共面波導饋入蜿蜒曲線形開槽陣列天線之設計與量測設定
Design and Measurement Setup of 38 GHz CPW-Fed Meander Line Slot Antenna Array
Date Issued
2004
Date
2004
Author(s)
liao, Zhi-Wei
DOI
en-US
Abstract
Recently, uniplanar antennas have been used in many applications in millimeter-wave systems. In this dissertation, we focus on the design of the CPW-fed meander line slot antenna array for operational frequency band from 38 to 38.5 GHz. Our design goal is to achieve a high gain antenna array. We utilize two kinds of short-stub as tuning networks to tune the high input impedance of the array to match the characteristic impedance of the feeding CPW.
The main beam of a high gain antenna array is usually very narrow. To make the correct measurement, it must be ensured that the antenna array stands still against the rotation of a swivel table, which may lead to a measurement error. For this reason, we make a mechanized clamping apparatus to combine the swivel table, the antenna array, and the K-connector together. It is placed on the swivel table in the anechoic chamber in order to connect the signal part of both the K-connector and the antenna array. When the swivel table is driven by a motor, it will not be vacillating and staggering. Therefore, we can reduce the error of our measurement. To check the accuracy of our design, a planar meander line slot array with a matching circuit is fabricated and tested. From experimental results, this antenna array is proved to be practical and useful.
Subjects
增益
gain
Type
thesis
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